GCIA · Question #75
Which of the following programs is used to add words to spam e-mails so that the e-mail is not considered spam and therefore is delivered as if it were a normal message?
The correct answer is C. Hash buster. A hash buster inserts random words or text into spam emails to alter the message hash, evading content-based spam filters that detect junk mail by matching known hash signatures.
Question
Which of the following programs is used to add words to spam e-mails so that the e-mail is not considered spam and therefore is delivered as if it were a normal message?
Options
- AAdler-32
- BHash filtrer
- CHash buster
- DChecksum
How the community answered
(26 responses)- A15% (4)
- B4% (1)
- C73% (19)
- D8% (2)
Why each option
A hash buster inserts random words or text into spam emails to alter the message hash, evading content-based spam filters that detect junk mail by matching known hash signatures.
Adler-32 is a fast checksum algorithm used for data integrity verification in applications like zlib, not a technique or program for evading email spam filters.
A hash filter is the spam detection component that identifies spam by comparing message hashes against a blacklist - it is the defense mechanism, not the evasion tool.
Hash busters work by embedding random or nonsensical words, whitespace, or invisible text into a spam message so that its computed hash value no longer matches any signature stored in the spam filter's database. Because the altered hash is unrecognized, the filter treats the message as legitimate and delivers it to the recipient's inbox instead of the spam folder.
A checksum is a mathematical value used to verify data has not been corrupted in transit, and is not a program designed to manipulate or bypass spam filtering systems.
Concept tested: Hash buster spam filter evasion technique
Topics
Community Discussion
No community discussion yet for this question.